Fan



F. W WUERIH.

FAN.

APPLICATION FILED JUNE 23.1919.

Patented Jan. 20,1920.

2 SHEETS-SHEET I.

ammwtoz 9 fWmLeWtM/ F. W. WUERTH.

FAN.

APPLICATION FILED JUNE 23' I9I9- I I 1,328,353, Patented Jan. 20, 1920.

2 SHEETS-SHEET 2.

vwewtoz FRED W. WUER'IH, 0F CINCINNATI, OHIO.

FAN.

Specification of Letters Patent.

Patented Jan. 20, 1920.

Application filed June 23, 1919. Serial No. 306,018.

To all whom it may concern:

Be it known that I, FRED W. W'UERTH, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented new and useful Improvements in Fans, of which thefollowing is a specification.

This invention comprehends the provislon of a chair attachment in thenature of a fan adapted to be operated simultaneously with the movementsof.the chair in both directions.

One of the chief characteristics of the invention resides in theprovision of a device of the above mentioned character which can beeasily and quickly attached "to or removed from the back of a chair, andsusceptible of adjustment to accommodate itself to chairs of variousdesigns and sizes.

Another object of importance consists in the fact that the componentparts of the attachment can be readily disassembled for convenience inpacking for shipping purposes or the lik Other objects and advantagesWlll appear as the nature of the advantages is better understood, fromthe following detailed de scription when taken in connect on w th theaccompanying drawing, the invent on residing in the construction,comblnation and arrangement of parts as claimed.

In the accompanying drawings formlng part of this specification, likenumerals of reference indicate the similar parts in the several views,wherein:

Figure 1 is a rear elevation of the attachment showing the same appliedto a chair;

Fig. 2 is a side elevation ofthe same with the protective housing orcasing 1n sectlon.

Fig. 3 is a sectional view taken on line 33 of Fig. 1.

Fig. & is a perspective view of the stationary frame.

Fig. 5 is an enlarged detail sectlonal vlew of the connection betweenthe separable parts of the frame.

The attachment forming the sub ect matter of my invention embodies astationary frame such as shown in Fig. 4 and which consists of avertically disposed rod 10 being provided at its lower extremity with apair of laterally extending branches 11 and a downwardly andintermediately dlsposed branch 12, the branches 11 being bifurcated attheir free extremities 13 to embrace the upper edge of the'back A of thechair, and

when so disposed the downwardly extending branch 12 assumes position atthe rear of the back A as shown. The branch 12 has associated therewitha socket 14 which provides a connection between the said branch and theattaching member 15 of the frame. This member 15 while forming a part ofthe stationary frame, can be readily separated therefrom when desired.The member is disposed vertically at the rear of the back A of thechair, and has its upper extremity provided with a plurality of teeth 16adapted to be engaged by a swinging latch 17 carried by the socket 14L,when the toothed extremity 16 is inserted or positioned within theadjacent end of said socket. The lower end of the attaching member 15terminates to provide a right angularly disposed flange 18 which extendsbeneath the lower edge of the back A of the back of the chair, and hasassociated therewith an adjusting screw 19 carrying a U-shaped swiveledportion 20 adapted to embrace the lower edge of the back edge of thechair as clearly shown. By reason of this construction, it is manifestthat the attaching member 15 can be adjusted relative to the branch 12of the rod 10, so that the stationary frame as an entirety can adjustitself to chair backs of different heights or designs, the latch 17automatically engaging the teeth 16 subsequent to the adjustment of thesaid parts, to hold the attaching member 15 fixed relatively to thebranch 12.

A transversely disposed shaft 20 has one end journaled in a bearing 21formed in the rod 10, the shaft 20 being braced by a diagonally disposedrod 22 the upper extremity of which also provides a bearing 23 for theshaft 20. A vertically disposed branch 24k of the frame is arrangedimmediately in advance of the shaft 20. A curved rod 27 projects fromthe bearing 21 in a direction of the vertically disposed branch 24. Afan carrying shaft is associated with the vertically disposed branch 24and carries beveled gear 30 which meshes with a relatively large beveledgear 31 fixed to the shaft 20, so that the fan 82 is operated uponrotation of the shaft 20. The fan 32 operates within a wire cage orhousing 33 as shown. Projecting from the rod 10 at a suitable point inits length is a stub shaft 34 upon which is rotatably mounted a cogwheel 36, the latter meshing with the relatively small cog wheel 37which is fixed I to be presently described.

36 with both the forward and backward movement of the chair, I employ aplurality of pivotally connected arms arranged in normal position todefine a parallelogram. The arms 40 and 41 have their adjacentextremities pivoted upon the stub shaft 34 upon which the cog wheel 36is journaled, while the opposite extremities of said arms have pivotalconnection with the adjacent extremities of the arms 42 and 43 of theparallelogram. The adjacent extremities 42 and 43 respectively arepivotally connected with a vertically disposed reciprocating rod 44,which when moved in an upward direction causes the collapsing of theparallelogram, consequently moving the pivots 44 for all of said armsaway from each other. Carried by each of the arms 40 and 41 is aresilient dog 46, and both of which dogs extend in the same directionfor the purposes lVhile the rod 44 may be operated in any suitablemanner, 1 preferably make use of a weighted floor engaging element 47provided with spurs or teeth 48 to prevent slipping or movement of themember while the attachment is in use. Pivotally connected with theweighted member 47 and with one end of the rod 44 is a bar 48 whichreciprocates the rod 44 upon rocking movement of the chair as will bereadily understood. Suitable guiding members 49 are securely fastened tothe attaching element 15 and arranged to receive the reciprocating rod4-4.

In practice, the attachment is secured to the back of the chair in themanner illus trated in Figs. 1 and 2, and when the chair is rocked ormoved in a rearward direction, the rod 44 is elevated thus collapsingthe parallelogram defined by the arms 40, 41, 42 and 43, respectively.With the collapsing of the parallelogram the pivots 45 are moved awayfrom each other, or in other words, toward the top of the cog wheel 36.As hereinabove stated, the resilient dogs 46 carried by the arms 40 and41 respectively extend in a common direction so that when the rod 44 iselevated the dog 46 carried by the arm 40 engages the teeth 50 formed onone side of the cog wheel 36 to rotate the latter, while the resilientdog 46 carried by the arm 41 moves freely over the teeth. When the chairis moved in a forward direction and the rod 44 consequently moveddownwardly, the dog 46 carried by the arm 41 engages the teeth 50 of thewheel 36 to continue the rotation of the latter, while the dog carriedby the arm 40 moves free-1y over the teeth to its normal position.Manifestly, a continuous rotation of the wheel 36 is therefore obtainedwith the forward and backward movement of the chair. As the cog wheel 36is rotated the fan 32 is actuated through the instrumentality of thegearing hereinabove described. It is to be noted, that the protectivehousing or casing which incloses the gearing permits ready access to behad to the parts for lubricating pur poses, and that the component partsof the attachment in its entirety can be readily disassembled andcompactly arranged to minimize space for shipping purposes.

Vhile I have shown and described the preferred embodiment of theinvention, I desire to have it understood that what is shown is merelyillustrative, and that I do not limit myself to this exact disclosureand that such changes may be resorted to when desired as fall within thescope of what is claimed.

What I claim is 1. A rocking chair attachment including a frame, saidframe embodying a member having a plurality of branches, certain of saidbranches embracing the upper edge of the back of the chair, the other ofsaid branches being hollow, a second member embracing the lower edge ofthe back of the chair and slidably fitted in the .last mentioned branchwhereby the frame can be adjusted to chairs of different sizes, andmeans for holding said members fixed relatively, a fan carried by thefirst mentioned member of the frame, and means for operating the fanupon rocking movements of the chair.

2. A rocking chair attachment comprising a frame, said frame including amember having a plurality of branches, certain of said branchesembracing the upper edge of the back of the chair, the remaining branchbeing disposed at the rear of said back, and of a hollow formation, asecond member designed to embrace the bottom edge of the back of thechair and slidably fitted in said hollow branch, said branch having anopening in one side thereof, the second mentioned member having teeth, ayoke swingingly mounted on said hollow branch and arranged to engage theteeth, to hold said members ofthe frame fixed relatively in adjustedposition, a fan carried by the, first mentioned member of said frame,and means for rotating said frame upon rocking move ment of the chair.

3. A rocking chair attachment comprising a frame, said frame including amember designed to embrace the upper edge of the back of the chair, anda member designed to engage the lower edge of said back, said membersbeing adjustably associated, means for holding said members fixedrelatively in adjusted position, the first mentioned member of saidframe being designed tosupport a fan, in horizontal position above thechair, a shaft j ournaled in said member, gearings connecting the saidshaft with the fan, a pinion on said shaft, a gear wheel mounted on saidframe and meshing With said pinion, ratchet teeth on said gear wheel, areciproeating element operable upon rocking movement of the chair, and aconnection between said element and the teeth of said ear Wheel wherebythe latter is continuously rotated upon reverse movements of the chairto operate the fan.

4. A rocking chair attachment, including a stationary frame, a fancarried by the frame and disposed above the seat of the chair, means foroperating the fan including a shaft journaled in said frame, a pinioncarried by said shaft, a vertically disposed gear, journaled on saidframe and meshing with said pinion, ratchet teeth formed on one side ofsaid Wheel, a reci l-rocating' element operable on rocking of the chair,a plurality of pivotally connected arnls arranged to define aparallelogram, said arms being pivoted upon the axis of said gear Wheeland also pivotally connected with the reciprocatory element, whereby theparallelogram is collapsed upon movement of the said element in onedirection, and means carried by certain of the arms of the parallelogramto engage the ratchet teeth and operate the fan upon rocking movementsof the chair.

In testimony whereof I affix my signature.

FRED W. 'WUERTH.

